Back to feed
Dev.to
Dev.to
7/5/2026
You hardened your origin and your CDN. Your DNS is still one provider away from going dark.

You hardened your origin and your CDN. Your DNS is still one provider away from going dark.

Short summary

Most sites use a single DNS provider, creating a critical SPOF that bypasses other hardening. The fix: distribute DNS across multiple providers on different networks. dns-resilience-check, an open-source tool, detects this by checking nameserver ASNs via public DNS data.

  • •Single DNS provider is a common single point of failure for entire domains
  • •Solution requires authoritative nameservers on different networks, not just different provider names
  • •dns-resilience-check tool identifies vulnerability by mapping nameserver IPs to ASNs

Generated with AI, which can make mistakes.

#open-source
Read full article at Dev.to

Is this a good recommendation for you?

Comments

Failed to load comments. Please try again.

Explore more

I put Cloudflare in front of my site, then found my origin one DNS record away from undoing it
Dev.to
Someone could be using your domain right now and you would not know
Dev.to
The original title is about building a continuous DNS compliance program for various standards (SOC 2, ISO 27001, NIS2, PCI-DSS).
Dev.to
Terraform Cloudflare DNS Checklist Before Every Apply
Dev.to